Sunday, Attorney General Eric Holder ordered a separate federal autopsy of a Missouri teen whose fatal shooting by a police officer was followed by more than a week of racially charged demonstrations and clashes with authorities. Citing the "extraordinary'' nature of the case, Justice Department spokesman Brian Fallon said Holder directed the action at the request of the family of Michael Brown, an 18-year-old black man shot by white Ferguson, Mo., Officer Darren Wilson. Also over the weekend, Missouri Gov. Jay Nixon declared a state of emergency and imposed a curfew in Ferguson after nights of protests. Seven people were arrested and one person was shot early Sunday as police and protesters clashed again in a haze of tear gas despite the curfew that took effect at midnight.

A member of the Federal Protective Service asks demonstrators to stay off the steps leading to the Thomas F. Eagleton federal courthouse during a protest in St. Louis. About 100 protesters marched from city hall to the courthouse as they continue to press for broader reforms to local and federal law enforcement following the shooting death of Michael Brown by police. (Photo: Jeff Roberson, AP)

Members of the Tauheed Youth Group pray with demonstrators and members of the 'Justice for Michael Brown Leadership Coalition' during a march near the Buzz Westfall Justice Center in Clayton, Mo. (Photo: Larry W. Smith, epa)

People pray after marching about a mile to the police station to protest the shooting of teenager Michael Brown in Ferguson, Mo. Brown's shooting on Aug. 9 by a Ferguson police officer has sparked more than week of protests, riots and looting in the St. Louis suburb. (Photo: Charlie Riedel, AP)

U.S. Attorney General Eric Holder shakes hands with Bri Ehsan, 25, following his meeting with students at St. Louis Community College-Florissant Valley in Ferguson, Mo. Holder was in Ferguson to oversea the federal government's investigation into the shooting death of 18-year-old Michael Brown by a police officer on Aug. 9th. (Photo: Pablo Martinez Monsivais, pool)

A citizen peacekeeper tries to keep protesters back as police advance on Aug. 18 in Ferguson, Mo. The Aug. 9 shooting of Michael Brown by a police officer has touched off demonstrations in the St. Louis suburb where police have used riot gear and tear gas against protesters. (Photo: Christian Gooden, St. Louis Post-Dispatch, via AP)

Attorney Benjamin Crump, left, holds a diagram produced during a second autopsy of shooting victim Michael Brown as forensic pathologist Michael Balden speaks at a news conference Aug. 18 in Ferguson, Mo. The independent autopsy shows Brown was shot at least six times on Aug. 9 by a Ferguson police officer. (Photo: Jeff Roberson, AP)

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Texas Gov. Rick Perry, a longtime Republican political figure and 2016 presidential hopeful, was indicted Friday by a Travis County grand jury after an investigation into whether he withheld millions of dollars from the office of a Democratic district attorney. A Texas governor hasn't been indicted since 1917, when Democrat James Ferguson was convicted and removed from office for vetoing funding for the University of Texas after objecting to some faculty members.

The man who filed the complaints against Gov. Rick Perry that resulted in his being indicted speaks out about what led to the complaints and how he thinks Perry should step down.

U.S. continues to strike militants near Iraqi dam

U.S. aircraft hammered Islamic State militants over the weekend as Kurdish forces reported progress in efforts to retake the area. The U.S. military launched 14 airstrikes around the dam Sunday, according to U.S. Central Command. That comes after nine airstrikes targeted the region Saturday in an expansion of the U.S. role in the conflict. The U.S. strikes on the dam were aimed at helping Kurdish forces take back terrain that had been lost to militants. Militants seized the dam this month, giving them control over the electricity distributed to much of northern Iraq and the capability to flood communities downriver.

A Kurdish soldier flashes the victory sign as they battle against Islamic State militants on Aug. 18 near Mosul, Iraq. (Photo: Ahmad Al-Rubaye, AFP/Getty Images)

A Shiite fighter loyal to Iraqi cleric Moqtada al-Sadr holds a position in support of the Iraqi army during a fight against Islamic State militants in the Jurf al-Sakher district on Aug. 18 outside Baghdad. (Photo: Ali Al-Saadi, AFP/Getty Images)

An Iraqi Yazidi woman sits with a child Aug. 17 under a bridge where displaced people of this religious minority found refuge after Islamic State militants attacked the town of Sinjar. (Photo: Ahmad al-Rubaye, AFP/Getty Images)

A Kurdish peshmerga fighter prepares his weapon in Chamibarakat, Iraq. Kurdish forces took over parts of a nearby dam that was captured by the Islamic State extremist group. (Photo: Khalid Mohammed, AP)

Supporters of Prime Minister Nouri al-Maliki rally in Baghdad. Tanks and Humvees were positioned on Baghdad bridges and at major intersections with security personnel more visible than usual as pro-Maliki demonstrators pledge their allegiance to him. The placard reads, "al-Maliki is our choice." (Photo: Karim Kadim, AP)

Iraqis chant pro-government slogans in support of embattled Prime Minister Nouri al-Maliki in Baghdad on Aug. 11. Al-Maliki is in a struggle to keep his job after Iraqi President Fouad Massoum nominated deputy speaker of the parliament Haider al-Abadi to replace him. (Photo: Hadi Mizban, AP)

Iraqi army armored vehicles patrol a street in Baghdad, amid tighter security after Iraq's prime minister said he would sue the president in a desperate bid to cling to his job. (Photo: Sabah Arar, AFP/Getty Images)

Peshmerga forces hand out water bottles and show the way to displaced Iraqi families from the Yazidi community as they cross the Iraqi-Syrian border at the Fishkhabur crossing, in northern Iraq. (Photo: Ahmad Al-Rubaye, AFP/Getty Images)

A displaced Iraqi boy from the Yazidi community crosses the Iraqi-Syrian border in northern Iraq. Many from the Yazidi, besieged by jihadists on a mountain in northern Iraq have safely escaped to Syria. (Photo: Ahmad Al-Rubaye, AFP/Getty Images)

An Iraqi Yazidi, who fled her home a week ago when Islamic State militants attacked the town of Sinjar, sits with a baby, on Aug. 10, in a building under construction where Yazidis found refuge in the Kurdish city of Dohuk. (Photo: Ahmad Al-Rubaye, AFP/Getty Images)

Iraqis Yazidis, who fled their homes a week ago when Islamic State militants attacked the town of Sinjar, sit on makeshift beds inside a building in the Kurdish city of Dohuk in Iraq's autonomous Kurdistan region where Yazidis found shelter. (Photo: Ahmad Al-Rubaye, AFP/Getty Images)

Displaced Iraqis from the Yazidi community settle at a camp at Derike, Syria. Kurdish authorities at the border believe some 45,000 Yazidis passed the river crossing in the past week and thousands more are still stranded in the mountains. (Photo: Khalid Mohammed, AP)

Female members of the Kurdistan Workers' Party take position on the front line in Makhmur, south of Arbil, the capital of the autonomous Kurdish region of northern Iraq where clashes with Islamic State militants are ongoing on Aug. 9. (Photo: Safin Hamed, AFP/Getty Images)

U.S. Air Force Sgt. Lynn Morelly watches bundles of halal meals parachute to the ground during a humanitarian airdrop mission on Aug. 9 over Iraq. (Photo: Vernon Young Jr., U.S. Air Force via Getty Images)

An image from British broadcaster Sky television shows Kurdish soldiers battling militants from the Islamic State of Iraq and the Levant on June 18 near Jalula, Iraq. Kurdish security forces fought the Sunni militants, using heavy artillery and rockets to attack their positions. (Photo: Sky via AP)

A photograph released on June 17 by Albaraka News allegedly shows a militant fighter from the Islamic State of Iraq and the Levant tying up a captured Iraqi soldier at an undisclosed location near the border between Syria and Iraq on June 12. (Photo: Albaraka News via epa)

A photograph released on June 17 by Albaraka News allegedly shows fighters from the Islamic State of Iraq and the Levant inspecting vehicles belonging to the Iraqi army after they were captured at an undisclosed location near the border between Syria and Iraq. (Photo: Albaraka News via epa)

Men flash victory signs as they leave a recruiting center to join the Iraqi army in Baghdad. Young Shiite men are joining the army to battle a Sunni militant force advancing from the north. (Photo: Khalid Mohammed, AP)

Militants parade down a main road in Mosul. Days after Iraq's second-largest city fell to the militant fighters, some Iraqis are already returning to Mosul, lured back by insurgents offering cheap gas and food, restoring power and water and removing traffic barricades. (Photo: AP via Twitter)

A photograph from a militant website appears to show militants from the al-Qaeda-inspired Islamic State of Iraq and the Levant taking aim at captured Iraqi soldiers wearing civilian clothing after capturing a base in Tikrit. ISIL has posted photos that appear to show its fighters shooting dead dozens of captured Iraqi soldiers in a province north of the capital Baghdad. (Photo: AP)

An Iraqi army armored vehicle destroyed during fighting with militants sits on a street on June 12 in Mosul. Militants belonging to the Islamic State of Iraq and the Levant have captured Tikrit and Mosul after soldiers and security forces abandoned their posts. (Photo: AP)

An image from video posted by Iraqi0Revolution, a group supporting the Islamic State of Iraq and the Levant, shows militants on the Al-Sharqat military base north of Tikrit. (Photo: Iraq0Revolution via AP)

Teenagers ride on an armored vehicle belonging to the Iraqi army in Tikrit on June 11. Al-Qaida-inspired militants seized effective control Wednesday of Saddam Hussein's hometown of Tikrit, expanding their offensive closer to the Iraqi capital as soldiers and security forces abandoned their posts following clashes with the insurgents. (Photo: AP)

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Liberian officials fear Ebola could soon spread through the capital's largest slum after residents raided a quarantine center for suspected patients and took items including bloodstained sheets and mattresses. The violence in the West Point slum occurred late Saturday and was led by residents angry that patients were brought from other parts of the capital to the holding center, Tolbert Nyenswah, assistant health minister, said Sunday. It was not immediately clear how many patients had been at the center.

A crowd enters the grounds of an Ebola isolation center in the West Point slum Aug. 16 in Monrovia, Liberia.(Photo: John Moore, Getty Images)

Couple who took Amish girls may have planned more kidnappings

A New York couple arrested in the kidnapping of two Amish sisters may have planned to abduct more children. St. Lawrence County Sheriff Kevin Wells said Saturday that "there was the definite potential" of additional victims and that additional charges may be filed against Stephen Howells, 39, and Nicole Vaisey, 25. The Hermon, N.Y., couple have been arraigned on charges they intended to physically harm or sexually abuse a 7-year-old and 12-year-old after abducting them from a roadside farm stand in northern New York state last week.

A police artist's sketch of 12-year-old Fannie Miller. Miller, along with her younger sister, Delila, were abducted from a roadside vegetable stand near their home in Oswegatchie, N.Y. They were found. Police could not issue a photo because of the Amish ban on photography.(Photo: AP)

3-year-old killed after suspect, police exchange fire

A 3-year-old girl was killed Saturday after a suspect fleeing in a car got into a shootout with police in Prince George's County, Md., outside of Washington. Police found the girl in the suspect's car in Camp Springs, suffering from gunshot wounds. The child was taken to a hospital, where she died Saturday afternoon. Six officers were involved in the shooting.

Scene of Md. shooting involving suspect and two adults and child.(Photo: Prince George's County Police Department)